Inspection and maintenance
Condens 7000 F – 6720871560 (2019/11)
32
11.2 Detailed overview of boiler components
Fig. 34 Detailed overview of components (illustration shows 200-
300 kW rating)
[1] Ignition electrode
[2] Gas pressure test nipple
[3] Temperature switch
[4] Fan
[5] Power supply plug
[6] PWM signal plug
[7] Gas burner casing
[8] Monitoring electrode
[9] Combustion air intake connector
[10] Test cable for gas outlet pressure (white gas line)
[11] Plug-in connector for compensation/ionisation line
[12] Siphon
[13] Condensation catch pan
[14] Differential pressure switch (p
1
-blue gas line, p
2
-white gas line)
[15] Burner control unit
[16] EMC butterfly valve
[17] Compensation line (blue)
[18] Gas pipe
[19] Offset setting, sealed
[20] Air/gas ratio control valve
[21] Valve check system
[22] Ignition transformer
[23] Gas pipe
Fig. 35 Detailed overview: position of sensor
[1] Flow temperature sensor
[2] Flue gas temperature limiter (optional; mandatory accessory
for Switzerland)
[3] Flue gas pressure limiter.
[4] Water pressure sensor
[5] Return temperature sensor
[6] Safety temperature limiter (on the first centre section,
on the left under the thermal insulation)
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